JPS5358231A - Device for correcting focal size - Google Patents
Device for correcting focal sizeInfo
- Publication number
- JPS5358231A JPS5358231A JP13313777A JP13313777A JPS5358231A JP S5358231 A JPS5358231 A JP S5358231A JP 13313777 A JP13313777 A JP 13313777A JP 13313777 A JP13313777 A JP 13313777A JP S5358231 A JPS5358231 A JP S5358231A
- Authority
- JP
- Japan
- Prior art keywords
- focal size
- correcting focal
- correcting
- size
- focal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
- G02B7/08—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted to co-operate with a remote control mechanism
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/28—Systems for automatic generation of focusing signals
- G02B7/282—Autofocusing of zoom lenses
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
- Automatic Focus Adjustment (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/739,664 US4083057A (en) | 1976-11-08 | 1976-11-08 | Focus size compensation |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5358231A true JPS5358231A (en) | 1978-05-26 |
Family
ID=24973285
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13313777A Pending JPS5358231A (en) | 1976-11-08 | 1977-11-08 | Device for correcting focal size |
Country Status (3)
Country | Link |
---|---|
US (1) | US4083057A (en) |
JP (1) | JPS5358231A (en) |
DE (1) | DE2749324A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5627111A (en) * | 1979-08-10 | 1981-03-16 | Hidetsugu Yokota | Optical device of constant magnification |
JPS6424311U (en) * | 1987-07-31 | 1989-02-09 |
Families Citing this family (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4183639A (en) * | 1976-11-25 | 1980-01-15 | Bell & Howell Company | Focusing system |
JPS5439144A (en) * | 1977-09-01 | 1979-03-26 | Minolta Camera Co Ltd | Zoom lens system for photography of fixed magnification |
US4176935A (en) * | 1977-10-25 | 1979-12-04 | George Smith | Motorized lens ring adjustor for still camera lens |
JPS5489632A (en) * | 1977-12-26 | 1979-07-16 | Canon Inc | Malfunction preventing mechanism of auto focus controller |
JPS54103025A (en) * | 1978-01-31 | 1979-08-14 | Nippon Chemical Ind | Device for focusing lens barrel |
JPS5562412A (en) * | 1978-11-04 | 1980-05-10 | Minolta Camera Co Ltd | Fixed magnification image pickup device in single operation ring type zoom lens barrel |
US4249805A (en) * | 1979-03-26 | 1981-02-10 | Magicam, Inc. | Composite photography system |
DE2925906A1 (en) * | 1979-06-27 | 1981-01-15 | Rollei Werke Franke Heidecke | OPTICAL IMAGING SYSTEM WITH VARIABLE FOCAL LENGTH, IN PARTICULAR ZOOM LENS FOR PHOTOGRAPHIC CAMERAS |
JPS5619033A (en) * | 1979-07-25 | 1981-02-23 | Canon Inc | Automatic focus control unit |
US4397544A (en) * | 1980-08-31 | 1983-08-09 | Fuji Photo Optical Co., Ltd. | Optical apparatus for changing magnification or reduction rates |
US4303324A (en) * | 1980-10-06 | 1981-12-01 | Eastman Kodak Company | Annular piezoelectric plastic bender lens motor |
US4461544A (en) * | 1980-12-04 | 1984-07-24 | Canon Kabushiki Kaisha | Autofocusing lens mounting |
JPS5799603A (en) * | 1980-12-11 | 1982-06-21 | Canon Inc | Zoom lens barrel |
JPS5926708A (en) * | 1982-08-05 | 1984-02-13 | Canon Inc | Focusing method of zoom lens |
JPS602063A (en) * | 1983-05-20 | 1985-01-08 | Canon Inc | Coreless motor |
US4605286A (en) * | 1983-05-20 | 1986-08-12 | Canon Kabushiki Kaisha | Motor built-in lens mounting |
JPS60218613A (en) * | 1984-04-16 | 1985-11-01 | Canon Inc | Automatic focusing device |
US5752095A (en) * | 1985-05-14 | 1998-05-12 | Canon Kabushiki Kaisha | Magnification change-over device for camera |
US4865432A (en) * | 1986-02-26 | 1989-09-12 | Canon Kabushiki Kaisha | Lens mounting |
DE3745055C2 (en) * | 1986-03-03 | 1998-02-26 | Canon Kk | Optics setter for camera |
US4748509A (en) * | 1986-09-18 | 1988-05-31 | Victor Company Of Japan, Ltd. | Focusing control and indication of information relating to an object |
US4848884A (en) * | 1987-02-05 | 1989-07-18 | Ricoh Company, Ltd. | Variable focusing lens barrel |
US5029991A (en) * | 1989-04-13 | 1991-07-09 | Canon Kabushiki Kaisha | Lens barrel |
JPH0348212A (en) * | 1989-07-17 | 1991-03-01 | Fuji Photo Film Co Ltd | Zoom lens device |
US5450156A (en) * | 1991-05-21 | 1995-09-12 | Asahi Kogaku Kogyo Kabushiki Kaisha | Power zoom lens and camera having same |
DE4216901C2 (en) * | 1991-05-21 | 1995-01-26 | Asahi Optical Co Ltd | Adjustable optical system |
US5396306A (en) * | 1991-05-21 | 1995-03-07 | Asahi Kogaku Kogyo Kabushiki Kaisha | Power lens and camera system |
US5339194A (en) * | 1992-08-17 | 1994-08-16 | Ram Optical Instrumentation, Inc. | Power zoom optical unit with encoder |
US5383060A (en) * | 1992-11-20 | 1995-01-17 | Litton Systems, Inc. | Dynamic compensating laser telescope apparatus |
JP3237275B2 (en) * | 1993-02-08 | 2001-12-10 | キヤノン株式会社 | Zoom lens |
JP3376241B2 (en) * | 1997-04-04 | 2003-02-10 | キヤノン株式会社 | Lens drive control device for zoom lens |
DE19755392C2 (en) * | 1997-12-12 | 2001-05-10 | Zentrum Fuer Neuroinformatik G | Imaging optical system |
US6806899B1 (en) | 1999-07-17 | 2004-10-19 | David F. Schaack | Focusing systems for perspective dimensional measurements and optical metrology |
US6751411B1 (en) * | 2003-05-29 | 2004-06-15 | Eastman Kodak Company | Camera assembly having travel stop |
US7417803B2 (en) * | 2004-11-18 | 2008-08-26 | Cognex Technology And Investment Corporation | Focusing mechanism for a vision detector |
CN101278190B (en) * | 2005-09-29 | 2012-12-19 | 奥林巴斯株式会社 | Focal position determining method, focal position determining apparatus, feeble light detecting apparatus and feeble light detecting method |
US11408032B2 (en) | 2020-01-17 | 2022-08-09 | Element Biosciences, Inc. | Tube lens design for improved depth-of-field |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1260296B (en) * | 1965-10-22 | 1968-02-01 | Agfa Gevaert Ag | Adjustment device for the lens of photographic reproduction devices, especially microfilm cameras |
JPS5647533B2 (en) * | 1973-12-14 | 1981-11-10 |
-
1976
- 1976-11-08 US US05/739,664 patent/US4083057A/en not_active Expired - Lifetime
-
1977
- 1977-11-04 DE DE19772749324 patent/DE2749324A1/en active Pending
- 1977-11-08 JP JP13313777A patent/JPS5358231A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5627111A (en) * | 1979-08-10 | 1981-03-16 | Hidetsugu Yokota | Optical device of constant magnification |
JPH0113084B2 (en) * | 1979-08-10 | 1989-03-03 | Hidetsugu Yokota | |
JPS6424311U (en) * | 1987-07-31 | 1989-02-09 |
Also Published As
Publication number | Publication date |
---|---|
DE2749324A1 (en) | 1978-05-11 |
US4083057A (en) | 1978-04-04 |
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